src/libcharon/plugins/eap_aka_3gpp/eap_aka_3gpp_plugin.c

   1 /*
   2  * Copyright (C) 2008-2009 Martin Willi
   3  *
   4  * Copyright (C) secunet Security Networks AG
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by the
   8  * Free Software Foundation; either version 2 of the License, or (at your
   9  * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
  10  *
  11  * This program is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  13  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * for more details.
  15  */
  16 /*
  17  * Copyright (C) 2015 Thomas Strangert
  18  * Polystar System AB, Sweden
  19  *
  20  * Permission is hereby granted, free of charge, to any person obtaining a copy
  21  * of this software and associated documentation files (the "Software"), to deal
  22  * in the Software without restriction, including without limitation the rights
  23  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  24  * copies of the Software, and to permit persons to whom the Software is
  25  * furnished to do so, subject to the following conditions:
  26  *
  27  * The above copyright notice and this permission notice shall be included in
  28  * all copies or substantial portions of the Software.
  29  *
  30  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  31  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  32  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  33  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  34  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  35  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  36  * THE SOFTWARE.
  37  */
  38
  39 #include "eap_aka_3gpp_plugin.h"
  40 #include "eap_aka_3gpp_card.h"
  41 #include "eap_aka_3gpp_provider.h"
  42 #include "eap_aka_3gpp_functions.h"
  43
  44 #include <daemon.h>
  45
  46 typedef struct private_eap_aka_3gpp_t private_eap_aka_3gpp_t;
  47
  48 /**
  49  * Private data of an eap_aka_3gpp_t object.
  50  */
  51 struct private_eap_aka_3gpp_t {
  52
  53         /**
  54          * Public eap_aka_3gpp_plugin_t interface.
  55          */
  56         eap_aka_3gpp_plugin_t public;
  57
  58         /**
  59          * USIM/EAP-AKA card
  60          */
  61         eap_aka_3gpp_card_t *card;
  62
  63         /**
  64          * EAP-AKA provider
  65          */
  66         eap_aka_3gpp_provider_t *provider;
  67
  68         /**
  69          * AKA functions
  70          */
  71         eap_aka_3gpp_functions_t *functions;
  72 };
  73
  74 METHOD(plugin_t, get_name, char*,
  75         private_eap_aka_3gpp_t *this)
  76 {
  77         return "eap-aka-3gpp";
  78 }
  79
  80 /**
  81  * Try to instantiate ea_aka_3gpp functions and card/provider backends
  82  */
  83 static bool register_functions(private_eap_aka_3gpp_t *this,
  84                                                            plugin_feature_t *feature, bool reg, void *data)
  85 {
  86         if (reg)
  87         {
  88                 this->functions = eap_aka_3gpp_functions_create();
  89                 if (!this->functions)
  90                 {
  91                         return FALSE;
  92                 }
  93                 this->card = eap_aka_3gpp_card_create(this->functions);
  94                 this->provider = eap_aka_3gpp_provider_create(this->functions);
  95                 return TRUE;
  96         }
  97         this->card->destroy(this->card);
  98         this->provider->destroy(this->provider);
  99         this->functions->destroy(this->functions);
 100         this->card = NULL;
 101         this->provider = NULL;
 102         this->functions = NULL;
 103         return TRUE;
 104 }
 105
 106 /**
 107  * Callback providing our card to register
 108  */
 109 static simaka_card_t* get_card(private_eap_aka_3gpp_t *this)
 110 {
 111         return &this->card->card;
 112 }
 113
 114 /**
 115  * Callback providing our provider to register
 116  */
 117 static simaka_provider_t* get_provider(private_eap_aka_3gpp_t *this)
 118 {
 119         return &this->provider->provider;
 120 }
 121
 122 METHOD(plugin_t, get_features, int,
 123         private_eap_aka_3gpp_t *this, plugin_feature_t *features[])
 124 {
 125         static plugin_feature_t f[] = {
 126                 PLUGIN_CALLBACK((void*)register_functions, NULL),
 127                         PLUGIN_PROVIDE(CUSTOM, "eap-aka-3gpp-functions"),
 128                                 PLUGIN_DEPENDS(CRYPTER, ENCR_AES_CBC, 16),
 129                 PLUGIN_CALLBACK(simaka_manager_register, get_card),
 130                         PLUGIN_PROVIDE(CUSTOM, "aka-card"),
 131                                 PLUGIN_DEPENDS(CUSTOM, "aka-manager"),
 132                                 PLUGIN_DEPENDS(CUSTOM, "eap-aka-3gpp-functions"),
 133                 PLUGIN_CALLBACK(simaka_manager_register, get_provider),
 134                         PLUGIN_PROVIDE(CUSTOM, "aka-provider"),
 135                                 PLUGIN_DEPENDS(CUSTOM, "aka-manager"),
 136                                 PLUGIN_DEPENDS(CUSTOM, "eap-aka-3gpp-functions"),
 137         };
 138         *features = f;
 139         return countof(f);
 140 }
 141
 142 METHOD(plugin_t, destroy, void, private_eap_aka_3gpp_t *this)
 143 {
 144         free(this);
 145 }
 146
 147 /**
 148  * See header
 149  */
 150 plugin_t *eap_aka_3gpp_plugin_create()
 151 {
 152         private_eap_aka_3gpp_t *this;
 153
 154         INIT(this,
 155                 .public = {
 156                         .plugin = {
 157                                 .get_name = _get_name,
 158                                 .get_features = _get_features,
 159                                 .destroy = _destroy,
 160                         },
 161                 },
 162         );
 163
 164         return &this->public.plugin;
 165 }